CEP or Cep may refer to:
A cephalopod (pronounced /ˈsɛfələˌpɒd/ or /ˈkɛfələˌpɒd/) is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet").
Cephalonia or Kefalonia (Greek: Κεφαλονιά or Κεφαλλονιά), formerly also known as Kefallinia or Kephallenia (Κεφαλληνία), is the largest of the Ionian Islands in western Greece.
The cephalic index or cranial index is the ratio of the maximum width (bipareital diameter or BPD, side to side) of the head of an organism (human or animal) multiplied by 100 divided by its maximum length (occipitofrontal diameter or OFD, front to back).
Cephalopods vary enormously in size. The smallest are only about 1 centimetre (0.39 in) long and weigh less than 1 gram (0.035 oz) at maturity, while the largest—the giant and colossal squids—can exceed 10 m (33 ft) in length and weigh close to half a tonne (1,100 lb), making them the largest living invertebrates.
Cephalotes patellaris is a species of arboreal ant of the genus Cephalotes, characterized by an odd shaped head, and the ability to "parachute" by steering their fall if they drop off of the tree they're on.
Cephalopods exhibit various dermal structures on their mantles and other parts. These may take the form of conspicuous warts, cushions, papillae or scales, though in many species they are microscopic tubercles.
Cephalotes coffeae is a species of arboreal ant of the genus Cephalotes, characterized by an odd shaped head, and the ability to "parachute" by steering their fall if they drop off of the tree they're on.
The cephalosporins (sg. /ˌsɛfələˈspɔːrᵻn, ˌkɛ-, -loʊ-/) are a class of β-lactam antibiotics originally derived from the fungus Acremonium, which was previously known as "Cephalosporium".
A Cepheid variable (/ˈsɛfiːɪd/ or /ˈsiːfiːɪd/) is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude.